Particle Identification at Belle II

7th International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions

Sandilya, S.^1

University of Cincinnati, Cincinnati

OH

45221, United States^1

关键词: Aerogel radiators;    Charged particle identification;    Kaon identification;    Misidentification probability;    Particle identifications;    Proximity focusing;    Ring imaging Cherenkov counter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/770/1/012045/pdf
DOI  :  10.1088/1742-6596/770/1/012045

来源: IOP

【 摘 要 】

We report on the charged particle identification (PID) systems for the upcoming Belle II experiment. The time of propagation counter in the central region and the proximity focusing ring imaging Cherenkov counters with aerogel radiator in the forward region will be used as the PID devices. They are expected to provide a kaon identification efficiency of more than 94% at a low pion misidentification probability of 4%. The motivation for the upgrade, method and status of both systems are discussed.